Table 1 Relation between PD-1 epithelial TC cell expression and clinic-pathological features. * P < 0.05 among groups
| Epithelial cell PD-1 staining | P | ||
|---|---|---|---|
| Negative/low | Positive | ||
| BRAF (n = 34) | |||
| Not mutated | 2 | 2 | 0.9 |
| Mutated | 16 | 14 | |
| Thyroiditis (n = 33) | |||
| No | 12 | 11 | 0.9 |
| Yes | 5 | 5 | |
| TNM (n = 34) | |||
| T1 | 11 | 9 | |
| T2 | 4 | 3 | 0.77 |
| T3 | 3 | 4 | |
| N0 | 17 | 6 | |
| N1 | 1 | 10 | 0.04* |
| M0 | 11 | 15 | |
| M1 | 7 | 1 | 0.9 |
| Progression free survival (n = 28) | |||
| No | 3 | 4 | |
| Yes | 12 | 9 | 0.51 |
| Stage (n = 29) | |||
| 1 | 12 | 6 | |
| 2 | 0 | 0 | 0.04* |
| 3 | 1 | 5 | |
| 4 | 2 | 3 | |
| Infiltrative phenotype (n = 34) | |||
| No | 15 | 13 | |
| Yes | 3 | 3 | 0.87 |